The Acolyte is there to combo with the Cabal Shadow Priest.
If you don’t have the Acolyte then maybe you should also replace the Priests as well.

If we don’t see a major shift towards more controlish decks this will suffer. You have no solid protection except doomsayers (of one can call them solid)

We will need to wait and see how the environment will shift with the new set. In a heavy controlish environment this could be a viable card if dropped on a good timing. Dropping him early will fill your deck reducing chances for a good draw.

Replacements for Confuse?